GitLab

	* install-sh:  Update to newer upstream versions (associated with
	aclocal 1.7).
	* mkinstalldirs:  Likewise.
	* missing:  Likewise, plus $1Help2man -> $1 typo fix.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69608 138bc75d-0d04-0410-961f-82ee72b054a4